Flutter Course List | Model

Flutter course list as json response from the server. This is used in our riverpod tutorial. You can use this model to convert server json data to an object.

class CourseRequestEntity {
  int? id;

  CourseRequestEntity({
    this.id,
  });

  Map<String, dynamic> toJson() => {
        "id": id,
      };
}

class SearchRequestEntity {
  String? search;

  SearchRequestEntity({
    this.search,
  });

  Map<String, dynamic> toJson() => {
        "search": search,
      };
}

class CourseListResponseEntity {
  int? code;
  String? msg;
  List<CourseItem>? data;

  CourseListResponseEntity({
    this.code,
    this.msg,
    this.data,
  });

  factory CourseListResponseEntity.fromJson(Map<String, dynamic> json) =>
      CourseListResponseEntity(
        code: json["code"],
        msg: json["msg"],
        data: json["data"] == null
            ? []
            : List<CourseItem>.from(
                json["data"].map((x) => CourseItem.fromJson(x))),
      );
}

//api post response msg
class CourseDetailResponseEntity {
  int? code;
  String? msg;
  CourseItem? data;

  CourseDetailResponseEntity({
    this.code,
    this.msg,
    this.data,
  });

  factory CourseDetailResponseEntity.fromJson(Map<String, dynamic> json) =>
      CourseDetailResponseEntity(
        code: json["code"],
        msg: json["msg"],
        data: CourseItem.fromJson(json["data"]),
      );
}

class AuthorRequestEntity {
  String? token;

  AuthorRequestEntity({
    this.token,
  });

  Map<String, dynamic> toJson() => {
        "token": token,
      };
}

//api post response msg
class AuthorResponseEntity {
  int? code;
  String? msg;
  AuthorItem? data;

  AuthorResponseEntity({
    this.code,
    this.msg,
    this.data,
  });

  factory AuthorResponseEntity.fromJson(Map<String, dynamic> json) =>
      AuthorResponseEntity(
        code: json["code"],
        msg: json["msg"],
        data: AuthorItem.fromJson(json["data"]),
      );
}

// login result
class AuthorItem {
  String? token;
  String? name;
  String? description;
  String? avatar;
  String? job;
  int? follow;
  int? score;
  int? download;
  int? online;

  AuthorItem({
    this.token,
    this.name,
    this.description,
    this.avatar,
    this.job,
    this.follow,
    this.score,
    this.download,
    this.online,
  });

  factory AuthorItem.fromJson(Map<String, dynamic> json) => AuthorItem(
        token: json["token"],
        name: json["name"],
        description: json["description"],
        avatar: json["avatar"],
        job: json["job"],
        follow: json["follow"],
        score: json["score"],
        download: json["download"],
        online: json["online"],
      );

  Map<String, dynamic> toJson() => {
        "token": token,
        "name": name,
        "description": description,
        "avatar": avatar,
        "job": job,
        "follow": follow,
        "score": score,
        "download": download,
        "online": online,
      };
}

// login result
class CourseItem {
  String? user_token;
  String? name;
  String? description;
  String? thumbnail;
  String? video;
  String? price;
  String? amount_total;
  int? lesson_num;
  int? video_len;
  int? down_num;
  int? follow;
  int? score;
  int? id;

  CourseItem({
    this.user_token,
    this.name,
    this.description,
    this.thumbnail,
    this.video,
    this.price,
    this.amount_total,
    this.lesson_num,
    this.video_len,
    this.down_num,
    this.follow,
    this.score,
    this.id,
  });

  factory CourseItem.fromJson(Map<String, dynamic> json) => CourseItem(
        user_token: json["user_token"],
        name: json["name"],
        description: json["description"],
        thumbnail: json["thumbnail"],
        video: json["video"],
        price: json["price"].toString(),
        amount_total: json["amount_total"],
        lesson_num: json["lesson_num"],
        video_len: json["video_len"],
        down_num: json["down_num"],
        follow: json["follow"],
        score: json["score"],
        id: json["id"],
      );

  Map<String, dynamic> toJson() => {
        "user_token": user_token,
        "name": name,
        "description": description,
        "thumbnail": thumbnail,
        "video": video,
        "price": price,
        "amount_total": amount_total,
        "lesson_num": lesson_num,
        "video_len": video_len,
        "down_num": down_num,
        "follow": follow,
        "score": score,
        "id": id,
      };
}

In general we are only interested in the code, msg and data section of the response.

Data field may contain complex json or list of jsons. We need to loop through them which we did using fromJson method.